Pump



Feb. 15, 1955 c. c. KRUSE 2,702,005

' PUMP Filed April 6, 1951 2 Sheets-Sheet 2 IN VENTOR CHAIR, E5 6 ARMsE lV/S ATTORNEY United States Patent PUMP Charles C. Kruse, Bellevue, Wash.

Application April 6, 1951, Serial No. 219,720

6 Claims. (Cl. 10344) This invention relates to pumps, and has for one of its objects the production of a simple and efficient pump mechanism which is especially adapted for pumping or elevating water, oil, or fluid of any type, from one elevation to agother by fluid pressure and balanced columns of A further object of this invention is the production of a pump wherein quantities of heated fluid are forced down in measured quantities through one discharge column and up through an adjoining discharge column by way of bypass connections to clear the upper portions of the discharge columns of frozen or tightly congealed fluid and to thereby facilitate continued operation of the pump without the necessity of removing sections of the pump to steam out masses of congealed substances.

A still further object of this invention is the production of a pump for elevating fluid by forcing a selected volume of fluid from the base of the pump through alternate columns to a receiving reservoir, and maintaining a continuous circulation between the reservoir and the alternate columns.

In the drawings:

, Figure l is a side elevational view of the pump, certain parts being shown in section;

Figure 2 is a vertical sectional view of the lower casing of the pump, certain parts being shown in elevation;

Figure 3 is a vertical sectional view of the lower casing of the pump taken at right-angles to Figure 2;

Figure 4 is a vertical sectional view of the lower casing of the pump taken on line 44 of Figure 3;

, Figure 5 is an enlarged vertical fragmentary sectional view of the lower portion of the pump mechanism, certain parts being shown in elevation;

Figure 6 is a horizontal sectional view taken on line 6 -6 of Figure 5;-

Figure 7 is a horizontal sectional view taken on line 7-'7 of Figure 5;

Figure 8 is a 'top plan view of the upper tank, partly in horizontal section; 1

Figure 9 is an enlarged fragmentary vertical sectional view of the upper tank showing the control means for the discharge end of one discharge tube or column;

Figure 10 is a view similar to Figure 9, showing the reverse side of the sleeve and discharge end of one of the columns;

' Figure 11 is a fragmentary sectional view taken on line 1111 of Figure 5; I Figure 12 is a diagrammatic view illustrating the relative positions of the slots which are formed in each sleeve of the control device.

' By referring to the drawings in detail, it will be seen that 10 designates the lower pump casing which is provided at its lower end with a pair of intake compartments 11 and 12 which are separated by a partition 13. An intake port 14 provides an intake at the bottom of the compartment 11 and a check valve 15 is seated in the port 14 to permit inflow and'check outflow in a conventional mau 18 and a check valve 21 is carried in the lower end of the 2,102,005 Patented Feb. 15, 1955 ICC pipe 19. These valves 20 and 21 permit flow into the pipes 18 and 19 and prevent return flow into the compartments 11 and 12.

. Pumping columns 22 and 23 extend upwardly through the top of the casing 10 to the reservoir R, which reservoir is located at a convenient place to facilitate operation. Power driven pistons 8 and 9 are preferably operated by a driven mechanism D, to oppositely reciprocate the pistons within the upper ends of the columns 22 and 23. This drive mechanism D may be of the type set forth in my Patent Number 2,666,396, issued January 19, 1954, and relating to Multiple Reciprocating Pump with Rack and Pinion Actuating Means. Any type of drive means may be used, however, within the spirit of the invention.

The columns 22 and 23 carry at their lower ends secondary pumping mechanisms 24 and 25 respectively, which are located within the casing 10 and extend parallel to the intake pipes 18 and 19, in the manner shown in Figures 3 and 4. The mechanism 24 comprises an upper cylinder 26 and a lower pumping cylinder 27. The mechanism 25 comprises an upper cylinder 28 and a lower pumping cylinder 29. A piston 30 is reciprocally mounted in the cylinder 26, and a piston 31 is mounted in the cylinder 27, the pistons 30 and 31 being rigidly connected by means of a rack bar 32. A piston 33 is reciprocally mounted in the cylinder 28, and a piston 34 is mounted in the cylinder 29. The pistons 33 and 34 are connected together by means of a rack bar 35. Pinions 36 are journalled in the casing 10 between the rack bars 32 and 35 and in meshing relation with said rack bars to simultaneously reciprocate the pistons 30 and 31 in an opposite direction relative to the pistons 33 and 34. The pinions 36 are preferably aligned in vertical spaced relation and the rack bars 32 and 35 are preferably held in meshing engagement with the pinions 36 by means of suitable bearings or rollers 37, carried by the connecting areas between the cylinders 26 and 27 and the cylinders 28 and 29. These connecting areas are preferably cut away to permit the pinions 36 to freely engage the rack bars 32 and 35, as shown in Figure 4. The pistons 33 and 34 with their connecting rack bar 35, and the pistons 30 and 31 with their connecting rack bar 32, constitute shuttle pistons.

The lower end of the cylinder 29 opens into the compartment 12. whereas the lower end of the cylinder 27 opens into the compartment 11. The intake pipe 18 is provided with a hollow elbow 38 at its upper end which is connected to the upper end of the cylinder 28 and provides a communication between the upper end of the pipe 18 and the upper end of the cylinder 28. The intake pipe 19 also is provided with a hollow elbow 39 at its upper end which is connected to the upper end of the cylinder 26 and provides a communication'between'the upper end of the pipe 19 and the cylinder 26. These elbows 38 and 39 are located above the upper limit of the stroke of the pistons 30 and 33 respectively. A communicating port-40 provides a communication between the pipe 19 and the a reverse flow. A perforated shield separates the port 40 from the interior of the cylinder 28 defining perforations 43, the perforations being arranged in an upwardly tapering formation as shown in-Figure 10, to progressively decrease the volume of discharge through the port 40 into the pipe 19, as the piston 33 moves upwardly across the perforations.

A check valve 44 is mounted in the port 41 to permit flow from the cylinder 26 to the intake pipe 18 and to prevent reverse or return flow through the port 41. A perforated shield 45 similar to that shown in Figures 5 and 10 separates the port 41 from the interior of the cylinder 26. It should be noted 'that the intake pipe 18 communicates with the cylinder 26 directly in the rear of v the pipe 18 through the medium of theport 41. The inak l pefi cQm un at s hthecy inde lfia ir ctlyl pipers between the port 41 'and the elbow 38 constitutes aby-passfrom"thelower"end 'ofjth'e cylinder 26jand the upperfitendof thecylinder 28. Thevolumeofthe' intake ipje 19"between the"port40"andthe"elbow39constitutes afby-pass from theflower end 'ofthe cylinder 28 and-the upperendoffthecylindei'26? I The upperends ofthe*"columns 22 and '23eittend' throughthe'bottom of the tankR and upwardly into the tank; A sleeve 46 is rotatablymount'ed' upon the u per end offthecolurnn'22within the 'tank; and a sleeve 47"is rjotatably'mounted' 'upon' the upper'end of thecolumn 23' within -the"'tank R. An'actujating' handle 48 is carried by the sleeve'46 above the tank'and an'actuatinghandle 49 is carried'iby-the s1eeve47' abovethe tank. Thetop of the"'t'a'nk'R*is" graduated as at50 and 51,-Radjacent the lraultlles to provide an'irrdex for each handle," so" that an operator-maydetermine the positions'of'the sleeves by registeringthe: handleswithdhe' graduate markings '1 to 6 asindicated'in Figure8. Theupper end 52 of the'column whiclrextendsinthetank R* is provided witha lower se'ries of apertures 53, for: exampleth'ree in' number, ad'- jaceritthe' bottom of tank R, a secondhigher series of apertures54', two in numberj'and a further aperture 55 whichis located"aboye'the'second series offiapertures, all of theseapertures beingarranged in triangular formation, in the manner shown in Figure'9; The'sleeve '46'is provided with aiseries of superimposed radialslots 56, '57 and'58,'-of progressively "different lengths, so that'theapertures of the series 53 and 54 and the'aperture"55 maybe'progressively; uncovered asthe sleeve :46 is 'rotatedin' one direction, and progressively closed-wherrthe sleeve 46 is rotated-in the opposite" direction: This structure constitutes a volume output controhfor the" fluid passing; through" the columns" 22"and"23 p M U v Superimposed rows of apertures"'59, Q f a11d ";61"v are formed in the column 22 above-'the apertures53, 5 4fand 55, theapeitures in thesuperimposed-rows 'beingin-vertbcal alignment-and being *ang'ularly offset relative to the apertures- 53; 54 and 55. Circumferentially extending slots 62," 63 and-64 arranged in superimposed relationj'are formed in-the sleeve 4and are adapted to move overth'e rows of apertures 59,- 60-and 61"as'the sleeve is rotated inone direction to progressivelymncover the apertures in therow'59, 60* and 61' to selectively increase or decrease thje volurne of*fl'uid discharge" from the-column 22; The slecve 47 is a-duplicate of the sleeve46;-andthe upper end of the column 23 is piovidedWith apertures -simi1'ar "to that described with respect to the column 22 so that the volumeof fluid disharged from colurnn23 may be selectively in'ereased 'or decreased andthe volume'outputof the colurn 23 may be -controlled by-rotating thesleeve '47.

The pist'ons 8and 9' are recipi'ocated alternately inopposite direct-ions, by the drivingmechanism D. The volume-output'control devices on the columns 22 and 23 are set by an operator to selectively and progressively open or close thevolume control ports-53, 54 and 55 to obtain a*desired volume of pumped fl'uidthrough the'colurnns 22- a'nd' 23. By seleetively opening these ports, the point of elevation at which the pistons'8 and 9 contact= the column of'fiuid in the columns 22 and 23'will be-elevated, therebyaddinga surplus amount of fiuid'in each of the columns 22 and 23 over and above the amount of'fiuid which 'is required to actuate the-pistons in the-secondary pumping mechanisms 24 and 25. Then on theup-stroke of each piston'; this 'surplus will be forced-through the ports-"40"and- 41 into the intake pipes 18' and 19 and up.- wardlyfthrough the elbows38and 39v incrossed relation. The-fluidfrom the pipe 18lwill bepassed across intofthe upper; end-of thecylinder n andout through the. column 23, whereas'th e fluidlfrom-the pipe '-19 wil-l bet-passed across into the upper ,endot thecylinder- 26 and out; tlfroilgh the ma l it qnp sr a vmn i h pss aboyethe ports 40 and 41 acting as by-passes, as above 4t tihs -....S e i on n nd, are nn dby. the rack bar 35, and the pistons 30 and 31 are connected by the rack bar 32, and these rack bars engage the pinions 37 therebetween, the pistons 30 and 31 will reciprocate in opposite directions to the pistons 33 and 34. The pistons 31 and 34 on the up-stroke will alternately draw fluid from the well into the compartments 11 and 12, and on the down-stroke the fluid'inthe'compartments 11 and 12 will be alternately fOI'CCd lIPTLfl-H OUgh the intake pipes 18 and 19 where it will receive an additional boost as a selected amountu-oftsurplus fiUld iS YfOICClfithI'OUgh the ports 40 and 41 by the pistons 30 and 33. The fluid passes up I through the columns' 22* and- 23*- ahdis discharged into the tank through the apertures in the upper ends of these columns 22and"23."

As is shown in Figure l, the tank R is provided with a suitable heating means to increase the temperature of the oil or fluid within the tank. This :heatingrneansmay be inthe nature of a' heating -coil" C,' or"if .desii'e dany.

suitableheating means'may be employed within -the scope oftheinvention. Byheat'ing' the'fiuidinthe ta'nlc'R, con? gealed or frozen fluid within the upper ends of the-men umns' 22' and 23 may be*readily' freed'and ejected. Thisis particularly advantageous where the pump .or-thec'ol urnnfsf22 and 23 pass throughv a" frozenjst'rata' of great depth, and where' these columns are lik'ely tobecoirie clogged or closed "because of, low surrounding; t "p. a; tures which mightfresultin' discontinuance of ope ationsl The heated fluid may bedrawn from the tank Randfedf through the by-pass portions of the pipes 18"a'nd '19, abet/e the-ports 40' and '41; and alternately through"thecolurhn's' 22 and 23 to the'tank'R upon the up-stroke of the pistons 8 and 9. A circulation is 0btained"throughtheby-pass portions ;of the pipes '18:.and"1 9" as the power pistons =8, and 9 'and' {the-"pistons30 'and 33 are actuated. The fluid betweenf-thepiston 9and thefpistonj 33 and" the] fluid be-j tween-the pistons 8 'and 9 drives the pistons 30 and33, and consequently actuatesthe'pumping pistons '31a'nd 34. A relief valve 62 such as is shown in Figure 3, provides a communication between the interior; of the"casing' f-10 and eachcompartment 11 and12. One" such valve 62 is provided for each compartment l lfand '12, and will are: vent inflow -therethrough into tl1e;casingji10; but will-permit outflow into "the compartments? Consequently; when pressure within the casing 19 exceeds'pressure within the compartments Il'1'- arid-12-, dischargemay be made"fr'orrithe interior I of the casing: 10' into the compartments and such discharged material, water, etc; will then bepun1p.ed Qutth'reughthepipes'=18 and 19." The casing 10 contains. fluid as shown "in'Figures 2-to' 4, inclusive; ThetankR is provided with a discharge or-overflowpipe'63 whitih may leadto suitable storagefacilities; I A

The parts of the pump which aretto be connected'to gether; are -'preferably 'we'lded whenassembling the pump. It should be noted that the. pistons 30 and 's'sare hydraulically actuated shuttlepistons-to which are'connected the pumping pistons 31 and 34 respectively; through 'the -medium'of the raek bars 32 andf35. In operation; the column pipes22 ai1d '23 contain fluid'fabove and beloiv the -pistons Sand 9, and" the pistons 31"; 3 4;32 and 35-wo'rkwithin the fluid contained" cylinders with the fiuid above and below"thepistons: By the addition" of the regulated surplus fluid which is admitted through-the control means-shown in'Fi'gures 9 andlO, the pumping mechanism will be prevented from lockingsince'an additional 'sel'e'cted amount of fiuidwill be added-toeach' columri under each-piston-S and 9-on each down=stroke of each piston, and any surplus over and above thearnount necessary to actuate thepistons 30" and 33 will pass throughthe ports40 and-41 and will be forced upwardly through'the by-pass portionsof the pipes '18 and '19. It should be understood of course-that thepistons8 'and'9 ontheir'up-strokes pass above the-apertures 5'2, 53 and 54s and intact move" to the top ends'of the pipes {22" and 23 "at the top: of the tank R, to discharge thefluid-out' through the openings in the'top-of 'the'sleeves46 and 47.

Having described the invention, what I claimas new is 1. A pump of the class described comprisihg-a'plurality of fluid containing column pipes, a power pistonin' each pipe, a fluid receiving tank connected'tov andcom j municating-with saidpipes for receiving-fluid-f1'om'=said; pipes, means carried adjacent said-tankfOractuating said power pistons simultaneously inopposite directions,-=eachpipe being adapted .to 1 contain fluid,-v a' secondary pumps ing mechanism carried by said pipes, means carried by said pipes for transferring fluid from one column pipe to an adjoining column pipe as said power pistons are actuated, each of said pipes having an extremity extending into said tank, and a selective and progressively variable volume output control device carried by the extremities of said pipes for controlling the volume of fluid flow into said pipes from said tank.

2. A pump of the class described comprising a plurality of fluid containing column pipes, a power piston in each pipe, a fluid receiving tank connected to and communicating with said pipes for receiving fluid from said pipes, means carried adjacent said tank for actuating said power pistons, each pipe being adapted to contain fluid, a secondary pumping mechanism carried by said pipes, means carried by said pipes for transferring fluid from one column pipe to an adjoining column pipe as said power pistons are actuated, each of said pipes having an extremity extending into said tank, each extremity having a series of volume intake apertures, a volume control sleeve movably fitted over each extremity, said sleeves having a series of slots adapted to selectively register with said volume intake apertures in said pipes, and means engaging said sleeves for facilitating the movement of said sleeves to bring said slots of said sleeves into selective registration with said intake apertures in said pipes to control the volume output of fluid flow from the tank into said pipes.

3. A pump as defined in claim 2, wherein each sleeve. is provided with a graduated index and said means for facilitating the movement of each sleeve comprises a handle adapted to register with said index to indicate the position of each sleeve and to indicate the volume of output from said tank into each pipe.

4. A pump of the class described comprising a pair of fluid containing column pipes, a tank connected to and communicating with said pipes for receiving fluid flow from said pipes, power actuated pistons in said pipes, means carried adjacent said tank for operating said power pistons simultaneously in opposite directions, cylinders connected to said pipes, a shuttle piston in each of said cylinders, mechanism mechanically connecting said shuttle pistons together to move said shuttle pistons simultaneously in opposite directions in unison with said power pistons and the fluid flow in said pipes, a companion intake pipe for each of said cylinders, communicating means connecting each of said cylinders with its companion intake pipe, communicating means connecting said companion intake pipes with the alternate of said cylinders at an elevation above said first mentioned communicatmg means in a manner whereby said intake pipes for portrons of their lengths constitute by-passes to transfer fluid flow from one of said cylinders to another of said cylinders and respectively through said column pipes.

S. A pump as defined in claim 4, wherein check valves are carried in each of said last mentioned communicatmg means to control fluid flow therethrough, and a check valve is carried by each of said first mentioned communicatmg means to admit fluid flow into the first mentioned communlcating means from a point exteriorly mereof.

6. A pump of the class described comprising a pair of fluid containmg column pipes, a tank connected to and communicating with said pipes for receiving fluid thererom, power actuated pistons in said pipes, means carr ed adjacent said tank for operating said power pistons simultaneously in opposite directions, cylinders connected to said pipes, a shuttle piston in each of said cylinders, mechanism mechanically connecting said shuttle pistons together to move said shuttle pistons simultaneously in opposite directions in unison with said power pistons and the fluid flow in said pipes, a companion intake pipe for each of said cylinders, a communicating means between each of said cylinders and its companion intake pipe, an intake check valve for each of said communicating means, an intake check valve for each companion intake pipe to prevent return fluid flow from said companion intake pipes, ports connecting said companion intake pipes with the alternate of said cylinders at an elevation above said communicating means in a manner whereby said intake pipes for portions of their lengths constitute by-passes to transfer fluid flow from one of said cylinders to another of said cylinders and respectively through said column pipes, and a check valve in fluid flow into said cylinders.

References Cited in the file of this patent UNITED STATES PATENTS FOREIGN PATENTS Austria Mar. 26, 1920 France June 25, 1913 each port to prevent reverse a 

